Mortise-gage.



A. D. SHARP.

MORTISE GAGE.

APPLICATION H110 OCT. 12. 1915.

Patented May 23, 1916..

ALVIN n. serene, or JACKSON, MICHIGAN, ASSIGNOR. or ONE-HALF ro HORACE ABBEY, or ANN ARBOR, MICHIGAN.

MORTISE-GAGE.

' Specification of Letters Patent.

Patented May'23, 1916.

Application filed. October 12, 1915. Serial No. 55,512.

the hinge leaves.

It is the object of the invention to provide an adjustable gage for facilitating the outlining of various sizes of hinge mortises upon doors, door jambs, and' the like, and

which device also serves as a guide for a;

wood chisel whereby the wood may be chiseled out easily and accurately within the outline of the mortise previously formed.

-The gageincludes novel means whereby the length, width and depth of the mortises can be regulated for the proper reception of .the hinge leaves, and the invention also includes novel means for holding the gage in place upon the edge of a door, the face of a door jamb, and the like. I g

It is also within the scope of the invention to provide a mortise gageof the nature indicated which is comparatively simple,compact, light and inexpensive in construction, as well as being accurate, convenient, serv iceable, practical and eflicient in use.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides inthe combination and arrangement of'parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention. The invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a sideelevatlon of the gage, 'POIi'JOIlS thereof being shown in section.

Fig. 2 is a plan view of the device. Fig. 3 is'a cross section taken on the line 33 of Fig. 1 and illustrating the gage applied to ajamb. Fig. i is a detailed view in plan of I one set of washers. used for adjusting the depth of the mortise.

In carrying out the invention, there is pro vlded an elongated stock 1 of suitable pro portions, and preferably formed from sheet metal. This stock 1 has an angularly extending relatively wide flange 2 along one edge, and an angularly extendingrelatively narrow flange 3 along its other edge, said flanges extending from one end of the stock to the other. The stock, however, may be of various constructions, suitable for thepurposes of the invention. The stock has a pair of longitudinal slots 4 therein alining wlthone another and arranged adjacent the opposite ends of the stock. At its ends the stock is provided with tongues 5 projecting in a direction opposite to the direction in which the flanges 2 and 3 project, and the tongues 5 are provided with elongated slots 6 arranged longitudinally thereof. The stock 1 1s provided adjacent its ends and be tween the slots'4 and tongues 5 with apertures" 7. 1

,Slldable through the apertures 7 are two splndles 8, and clamping screws 9 working within the slots 6 threadedly take into thespindles adjacent certain ends thereof; Feet 10 projecting at an angle from the spindles are swiveled or riveted loosely, as at 11, to the other-ends of the spindles 8, and are adapted to be rotated about the axes of said spin dl es,-so that the feet 10 can be swung to various angular positions. When the screws 9 are loosened, the same may be moved within the slots 6' for adjusting the spindles 8 longitudinally of themselves and transverselyrelative to the stock 1, and when. the screws are tightened, the spindles are clamped in place. Washers 11 are preferably dlsposed between the spindles 8 and tongues 5 upon the screws 9, and the spindles 8 are preferably graduated,as at 12, so

that the graduations cooperate with the 7 stock 1 for indicating the positions of the spindles. e H

A pair of adjustable strip-like members 13 is carried bythe stock 1, the same preferably being formed from sheet metal, andhaving angularly extending feetlatresting upon or against the stock 1.v The members 13 project in the same direction as the I tongues 5, and the feet 14 have" flanges or lips 15 overlapping the flange 2, to prevent the members 13 from rotating. Bolts 16 are engaged through apertures with which the feet '14 are provided and work within the longitudinal slots 4 of the stock, the heads of the bolts 16 being disposed below. the slots 4, and nuts 17 are threaded upon the bolts 16 and bear upon the feet 14, whereby when the nuts 17 are tightened, the feet 14 are clamped upon the stock 1. When the nuts 17 are loosened, the members 13 can be adjusted or shiftedlongitudinally relative to the stock," the flange 2 preferably being graduated, as at 18, to cooperate with the lips 15 for indicating the positions of the members 13 relative to one another and to the stock. The members 13 have elongated slots 19 arranged longitudinally thereof.

A longitudinal member 20, preferably formed from sheet metal, crosses the members 13 parallel with the stock 1. The members 13- are arranged adjacent that edge of the stock 1 having the flange 3, and the longitudinal member 20 is located at that side of the members 13 opposite the flange 2. The member 20 has a flange 21' projecting at an obtuse angle therefrom and at that edge of the member 20- remote from the stock 1. The member 20 has a pair of longitudinal slots 22 adjacent its opposite ends, and bolts 23 extend through the slots 19 and 22 of the respective members 12 and 20. The'heads of the bolts 23 are in rear of the member 20 and nuts 24 are threaded upon the bolts 23 in front of the members 13. Washers 25 are disposed upon the bolts -23 between the nuts 24 and members 13.

A set ofelongated washers 26 pivoted together, as at 28, is applied to each bolt 23. One of said washers 26- has an aperture 28 receiving the respective bolt 23, said washer being disposed upon the bolt between the member 20 and respective member 13. The other washers 26 are each pro- ;vided with a notch 29 for receiving the bolt 23, whereby one 'or more of the notched washers 26 can be swung into engagement with the'bolt. The member 20 will therefore be spaced more or less from the members 13, without the necessity of removing the bolts 23. The apertured washers 26 continually engage the bolts 23, and the notched washers 26 can be engaged with and disengaged from the bolts 23 at will, to properly space the members 20 and 13 apart. The washers 26 being pivoted together cannot be lost or misplaced, and provide handy means for the intended purposes. "Washers 30 are preferably disposed upon the bolts 23 between the apertured washers 26 and the members 13. In. case of necessity, when the washers 26 are not. sufiicient, some of the washers 25 may be removed and applied between the members 20 and 13, but this is not ordinarily necessary.

As a convenient and simple means for attaching the stock to the door, jamb, or other part which is to be mortised, a U-shaped upon the spindle 32 between one limb of the bracket 35 and a collar 36 secured upon the spindle within the bracket, whereby the spring 35 will normally retract the spindle 32. The spindle 32 is located within the'opening formed by the stock 1 and members 13 and 20, whereby the spur 34 is engageable with the "wood within the outline of the mortise defined by the stock 1 and the members 123-20.

In using the gage for forming a hinge mortise in the jamb J having a rabbet R for the reception of the door, window sash, or other swinging member, as illustrated in Fig- 3, ,the spindles 8 are adjusted to bring the feet.10 at a suitable distance from the stockl parallel therewith. The nuts 17 and 24 are then loosened, and the members 13 are adjusted upon the stock 1 so as to be spaced apart properly according to the length of mortise desired, in which event, the nuts 17 are tightened to hold the members 13 in place. The washers 26 are now .manipulated to bring the proper number thereof between the members 13 and 26, so that the member 20 is properly spaced from the members 13 according to the depth of mortise desired. When this is done, the member 20 is adjusted so as tobe spaced properly from the stock '1, so that the width.

of the mortise will be defined by the space between the stock 1 and the member 20. The

applied to the j amb J as indicated in Fig. 3.

The members 13 rest against the wall. of'the rabbetR which is to be provided With the mortise and the feet rest against the other outlined, by running the nose of a wooden chisel along the adjacent edges of,the members 13 and along the face of the stock- 1 andmember 20, the chisel being tappedor struck by a hammer, mallet or other implement, whereby the mortise will be outlined. The gage is now removed and the wood is chiseled out within the outline of 115 wall to space the stock suitably therefrom, I

the mortise. Attention is directed to the fact that the device employed for holding the gage in place, will not mar or injure the wood outside of the mortise, since the spur 34: is driven into the wood within the outline of the mortise, the aperture thus formed being covered by the hinge when the hinge is applied.

When the gage is used for cutting a ntortise in the edge of a door, window, or other swinging member, the feet 10 are swung at right angles with the stock so as to overlap one side of the door, while the member 20 is brought adjacent the opposite side of the door, the members 13 resting upon the edge of the door. The spur 34 is driven into the wood for holding the gage in place, during the time that the mortise is outlined, and the-n the gage is removed to enable the wood to be chiseled out. Especial attention is direoted to the fact that when the gage is applied to the j amb, as illustrated in Fi 3, the feet 10 rest against the respective wa l of the rabbet, Whereas when the gage is applied to the door, the feet 10 overlap 'one side of the door, and this will without a read -justment of the spindles 12, provide a clearance between the respective side of the door and said wall of the rabbet. This clearance will allow for several coats of paint, varnish, or the like.

7 pair of adjustab The present device may be used for convenientlyand accurately forming mortises of various proportions, and has numerous advantages and attributes which will be apparent from the foregoing, taken in connection with the drawing.

Having thus described the invention, what is claimed as new is:

1. A mortise gage comprising a stock, a pair of adjustable members carried thereby, a lon itudinal member, bolts engaged throng said fmembers, and a set of washers for each bolt, the washers of each-set being pivoted together and one washer having an a erture receiving the bolt, said washer belng disposed between the longitudinal member and respective first mentioned member and the other washers having notches for' receiving the bolt.

2. A mortise age comprising a stock, a

le members carried thereby and rojecting to. one side thereof, an adjustable member carried by said members parallel with the stock to rest against one side of an object, and spindles adjustably carried by the stock and having certain ends projecting to the opposite side of said stock and having feet at said ends engageable with the object.

3. A mortise gage comprising a stock, a pair of adjustable members carried thereby, an adjustable member carried by said members parallel with the stock to rest againstcarried by the stock and having pivoted fee't adapted to engage the object and adapted to be swung to various angular positions.

4. A mortise gage embodying a stock, a pair of adjustable members carried thereby, a longitudinal adjustable member carried by said members to rest against one side of an object to be mortised, a pair of slidable spindles carried by the ends of the stock, means for holding said spindles at various positions, and means carried by said spindles for engaging the object.

5. In a mortise gage, a stock, a pair of adjustable members carried thereby, a longitudinal adjustable member carried by said members to rest against one side of an object to be mortised, the'ends of the stock having tongues projecting in the same di-' rection from the stock as the first mentioned members, said tongues having slots, spindles slidable through the stock adjacent the A mortise gage comprising adjustable members providing an opening for outlining a mortise, said members surrounding said opening, and a spur movably carried byzone of said members and adapted to be driven into the object to be mortised within said opening, and adapted to hold said members in place.

8. A mortise gage comprising a stock, a

pair of adjustable members carried thereby for definin the ends of a mortise, and means carried by the stock between said ,members to be. driven. into the object to be mortisedbetween said members for holding the stock in place.

9. A mortise gage comprising a stock, a pair of adjustable members carried thereby for defining the ends of a mortise, and a movablemember carried bythe stock between the said membersand having a spur to be driven into the object to be mortised between said members to hold the stock in place upon the object.

10. A mortise gage comprising a stock, a

. pair of adjustable members carried thereby for defining the ends of a mortise,'a bracket attached to the stock between said members, and a spindle slidable through the bracket, and having a spur to enter the object to be mortised between said members.

11. A mortise gage comprising a stock, a

pair of adjustable members carried thereby for defining the ends of the mortise,a U- shaped bracket attached to the stock be- 5 tween said members, a spindle slidable through the limbs of said bracket and having a spur at one end to enter the object to be mortised between said members, a collar upon the spindle within the bracket, and 

